The good thick bed is also perfect for grazing livestock and wildlife. Switchgrass ( Panicum virgatum) is a summer perennial grass that is native to North America. Our Real World Switch Grass will get 7’ … mso-outline-level:3; Switchgrass for Ethanol & Biodiesel We’ll keep you post A firm moist seed bed that has been tested for deficiencies of the soil with applications made to correct these deficiencies is the basis for the grass crop. The challenge for scientists is in unlocking the sugars held in switchgrass so that it can be converted into cellulosic ethanol. {page:Section1;} . -->.